Piotr Caban : winprint: Fix parameters validation in EnumPrintProcessorDatatypesW.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a98fb06a5b0278383cd59690d756edeedcb807c4
URL:    https://gitlab.winehq.org/wine/wine/-/commit/a98fb06a5b0278383cd59690d756ede...

Author: Piotr Caban <piotr(a)codeweavers.com>
Date:   Sat Dec  3 18:42:10 2022 +0100

winprint: Fix parameters validation in EnumPrintProcessorDatatypesW.

---

 dlls/winprint/printproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/winprint/printproc.c b/dlls/winprint/printproc.c
index d7d9cce9d93..8ea3557b3bc 100644
--- a/dlls/winprint/printproc.c
+++ b/dlls/winprint/printproc.c
@@ -81,7 +81,7 @@ BOOL WINAPI EnumPrintProcessorDatatypesW(WCHAR *server, WCHAR *name, DWORD level
     *no = 0;
     *needed = sizeof(*info) + sizeof(raw);
 
-    if (level != 1 || !datatypes)
+    if (level != 1 || (size && !datatypes))
     {
         SetLastError(ERROR_INVALID_PARAMETER);
         return FALSE;